Load master data

Define sample

Get biomass data

Load JRC data

Project biomass and jrc to same raster

Mask pixels which have been deforested X time prior

(do I need to account for disturbance as well? Check JRC user guide)

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Correcting for "last year of deforestation" rather than "first year"

In the JRC TMF data specification it says that the DeforestationYear marks the first year of deforestation. What we need for our regrowth analysis, however, is the last year of deforestation. This will tell us from when on the forest was undistrubed and could resume its growth.

JRC procedure: The JRC-TMF classification process starts out by mapping disturbances in the forest canopy on a yearly basis, regardless of their permanence. The distinction between deforestation and forest degradation is made three years after the disturbance occurred by measuring the permanence of the forest disturbance over time. If the forest canopy is disturbed permanently, i.e. shows no signs of forest regrowth over the three years following the disturbance, the ‘forest disturbance’ pixel falls into the deforestation class. If a ‘forest disturbance’ pixel shows clear signs of forest regrowth within the three years following the disturbance, it is classified as forest degradation. In consequence, the distribution of yearly deforestation and forest degradation areas within the measured yearly overall forest disturbance areas are consolidated until 2017, but are estimated (indicated by stars in Figure 21) for the years 2018-2020 on basis of the 16-year average for the period 2002-2017.

The dataset contains yearly information about disturbances in tropical humid forest, starting from year 1984, and about the trajectories over time of each disturbed forest pixel. It differentiates between short-duration and long-duration disturbances, depending on the forest regrowth after the disturbance. Forest regrowth classes only apply to previously deforested areas, not for forest degradation areas. The dataset differentiates between old, young and very young regrowth, depending on when the forest started to grow back after deforestation. Deforestation and forest degradation information are aggregated to the periods ‘before 2000’, ‘2000-2009’ and ‘2010- 2019’ in order to make the map easier to read. However, the data contains the full information, i.e. the precise years of first or consecutive forest disturbances, plus their classification into the deforestation or forest degradation classes

Note: Text from here

Legacy

Extract survey names

Extract latitude longitude